Source : Webster's Revised Unabridged Dictionary (1913)

Witticism \Wit"ti*cism\, n. [From {Witty}.]
   A witty saying; a sentence or phrase which is affectedly
   witty; an attempt at wit; a conceit. --Milton.

         He is full of conceptions, points of epigram, and
         witticisms; all which are below the dignity of heroic
         verse.                                   --Addison.

Source : WordNet®

witticism
     n : a message whose ingenuity or verbal skill or incongruity has
         the power to evoke laughter [syn: {wit}, {humor}, {humour},
          {wittiness}]